System for and method of providing a controlled deposition on wa

Chemistry: electrical and wave energy – Processes and products – Coating – forming or etching by sputtering

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427240, 4272481, 427445, 2041921, 20429825, 20429827, 20429828, C23C 1434

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active

060833572

ABSTRACT:
A robotic arm assembly in a transport module is expansible to have an effector at its end receive a substrate in a cassette module and is then contracted and rotated with the effector to have the effector face a process module. Planets on a turntable in the process module are rotatable on first parallel axes. The turntable is rotatable on a second axis parallel to the first axes to move successive planets to a position facing the effector. At this position, an alignment assembly is aligned with, but axially displaced from, one of the planets. This assembly is moved axially into coupled relationship with such planet and then rotated to a position aligning the substrate on the effector axially with such planet when the arm assembly is expanded. A lifter assembly aligned with, and initially displaced from, such planet is moved axially to lift the substrate from the effector. The arm assembly is then contracted, rotated with the effector and expanded to receive the next cassette module substrate. The lifter assembly is then moved axially to deposit the substrate on the planet. When the substrates have been deposited on the planets, the planets are individually rotated on the first axes by a stator rotatable on the second axis with the turntable. Guns having a particular disposition relative to the planets provide controlled depositions on the substrates during such planet rotations. The planets and the end effector hold the substrates at peripheral positions displaced from the controlled substrate depositions.

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Patent Abstracts of Japan, vol. 011, No. 059 (E-482), Feb. 24, 1987 & JP 61 220352 A (Seiei Kosan KK), Sep. 30, 1986 *abstract*.

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